JP7104602B2 - Disposable diapers - Google Patents

Description

The present invention relates to a pants-type disposable diaper.

Conventionally, disposable diapers having an exterior member formed in the shape of pants and an absorbent main body provided at the crotch portion of the exterior member and having an absorbent body arranged between a top sheet and a back sheet have been known (for example). , Patent Documents 1 to 6). Patent Document 6 describes a disposable diaper in which an elastic material around the legs is fixed between layers of a plurality of sheets constituting the exterior member along the left and right leg circumference openings of the exterior member, and the left leg circumference opening is formed. The adhesive is applied to the outer periphery of each of the portion and the opening forming portion around the right leg by dividing into at least three block-shaped regions, and the opening forming portion around the left leg and the right leg are applied to the application region to which the adhesive is applied. It is disclosed that the elastic material around the leg is arranged in an extended state along each of the peripheral opening forming portions.

Japanese Unexamined Patent Publication No. 8-280739 Japanese Unexamined Patent Publication No. 2004-049763 Japanese Unexamined Patent Publication No. 2004-298395 Japanese Unexamined Patent Publication No. 2005-0876222 Japanese Unexamined Patent Publication No. 2014-180346 Japanese Unexamined Patent Publication No. 2009-189621

Since disposable diapers are worn for a relatively long period of time, it is desired that sweat, stuffiness, etc. emitted from the wearer be preferably discharged to the outside of the diaper in order to improve the wearing feeling. In particular, in a disposable diaper in which an absorbent body is arranged at the crotch portion of a pants-shaped exterior member, the air permeability at a portion where the exterior member and the absorbent body overlap tends to decrease. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a disposable diaper having excellent breathability.

The disposable diaper of the present invention that has been able to solve the above problems has a front body portion, a rear body portion, and a crotch portion located between them, and the front body portion and the rear body portion are joined to each other. As a result, an exterior member formed in a pants shape having a waist opening and a pair of leg openings, and an absorber provided on at least the crotch portion of the exterior member and arranged between the top sheet and the back sheet. A disposable diaper with an absorbent body and an exterior member having an inner sheet and an outer sheet, across the crotch between the inner and outer sheets and along the anterior edge of the leg opening. An anterior leg elastic member that extends along the crotch and a posterior leg elastic member that crosses the crotch and extends along the posterior edge of the leg opening; The inner sheet and the outer sheet are bonded to each other in the first bonding area; the second bonding area is located in front of the second intermediate bonding area provided in the crotch and the second intermediate bonding area. It has a second front bonding region provided and a second rear bonding region provided on the rear side of the second intermediate bonding region. In the second intermediate bonding region, the front leg elastic member and the rear leg Part elastic members are provided across the crotch; at least part of the second intermediate bonding region overlaps the first bonding region and extends from one side edge to the other side edge of the absorbent body in the width direction. It is characterized in that the second anterior adhesive region is provided to meet the following requirement A and / or the second posterior adhesive region is provided to meet the following requirement B. Have.

(Requirement A) At least a part of the second front adhesive region is provided so as to overlap with the first adhesive region, and is provided intermittently from one side edge to the other side edge in the width direction of the absorbent body. A second front non-adhesive region is formed in a portion overlapping the absorbent body on the front side of the second intermediate adhesive region so that the inner sheet and the outer sheet are not adhered, and the second front adhesive region is in the width direction of the first adhesive region. It is provided so as to overlap one side edge and the other side edge.

(Requirement B) At least a part of the second rear adhesive region is provided so as to overlap with the first adhesive region, and is provided intermittently from one side edge to the other side edge in the width direction of the absorbent body. A second rear non-adhesive region in which the inner sheet and the outer sheet are not adhered is formed in a portion overlapping the absorbent main body on the rear side of the second intermediate adhesive region, and the second rear adhesive region is the first adhesive. It is provided so as to overlap one side edge and the other side edge in the width direction of the region.

In the disposable diaper of the present invention, the absorbent body is adhered to the skin surface side of the exterior member in the first adhesive region, and the inner sheet and the outer sheet of the exterior member are bonded to the second front adhesive region and the second rear adhesive region. They are bonded to each other at the second intermediate bonding region between them. At this time, the second front adhesive region and / or the second posterior adhesive region is intermittently provided in the width direction, so that the inner sheet and the outer sheet of the exterior member are adhered to the portion where the exterior member overlaps the absorbent main body. A second anterior non-adhesive region and / or a second posterior non-adhesive region that is not formed is formed. Therefore, the air permeability of the exterior member is enhanced, and sweat and stuffiness generated by the wearer are easily discharged to the outside of the diaper. On the other hand, the second intermediate bonding region is provided so as to overlap the first bonding region, and the second front bonding region and / or the second rear bonding region overlaps one side edge and the other side edge in the width direction of the first bonding region. Therefore, the absorbent main body is appropriately positioned with respect to the exterior member via the first adhesive region and the second adhesive region, and is less likely to shift at the wearer's crotch portion. Therefore, the wearing feeling of the disposable diaper can be improved.

It is preferable that the front leg elastic member and the rear leg elastic member are provided intermittently across the crotch portion in the second intermediate bonding region. If the front leg elastic member and the posterior leg elastic member are provided in this way, the absorbent body is less likely to be distorted by the contraction force of the front leg elastic member and the posterior leg elastic member, and the wearer of the absorbent body The fit in the crotch can be improved.

The second intermediate adhesive region is preferably provided extending from one side edge in the width direction and the other side edge in the width direction of the absorbent body to the outer edge of the exterior member. By providing the second intermediate adhesive region in this way, the inner seat and / or the inner seat and / or the portion where the front leg elastic member and the posterior leg elastic member extend from the portion crossing the crotch portion to the portion extending along the edge of the leg opening. It will be adhesively fixed to the outer sheet.

The second anterior adhesive region extends anterior to the anterior edge of the absorbent body and / or the second posterior adhesive region extends posterior to the posterior edge of the absorbent body. It is preferable that it is provided. If the second front adhesive region and / or the second posterior adhesive region is provided in this way, the end portion of the absorbent main body in the front-rear direction is appropriately positioned with respect to the exterior member, and the absorbent main body is positioned in the front-rear direction. It becomes difficult to shift with respect to the exterior member over a wide range of.

The second front adhesive region extends outward in the width direction from one side edge in the width direction and the other side edge of the absorbent body, is provided so as to overlap the front leg elastic member, and is provided from the front leg elastic member. Also extends forward and / or the second posterior adhesive region extends outward in the width direction from one side edge in the width direction and the other side edge of the absorbent body and the posterior leg. It is preferable that it is provided so as to overlap the elastic member and extends rearward from the elastic member of the rear leg. By providing the second front adhesive region and / or the second posterior adhesive region in this way, the portion extending along the edge of the leg opening of the front leg elastic member and / or the posterior leg elastic member is the inner sheet. And / or will be adhesively fixed to the outer sheet.

The front body and the rear body are provided with a body elastic member extending in the width direction between the inner sheet and the outer sheet, and the second front bonding area and / or the second rear bonding area is body elasticity. It is provided apart from the member, and a non-adhesive region is formed between the second front adhesive region and / or the second posterior adhesive region and the body elastic member so that the inner sheet and the outer sheet are not adhered. preferable. By providing the non-adhesive region in this way, the moisture accumulated in the second front non-adhesive region and the second rear non-adhesive region is easily discharged to the outside of the diaper.

From the relationship with the first adhesive region, it is preferable that the second front non-adhesive region and the second rear non-adhesive region are provided as follows. That is, the length from one side edge to the other side edge in the width direction of the portion where the first adhesive region overlaps with the second front adhesive region is W _A1 , and the length in the width direction of the second front non-adhesive region is WA ₂ . When, the value of _WA2 / _WA1 is 0.15 or more and 0.90 or less, and / or from one side edge in the width direction of the portion where the first adhesive region overlaps with the second rear adhesive region to the other side. When the length to the edge is _WB1 and the length in the width direction of the second rear non-adhesive region is _WB2 , the value of _WB2 / _WB1 is preferably 0.15 or more and 0.90 or less. ..

The length of the second front non-adhesive region in the width direction is preferably longer than the length of the second rear non-adhesive region in the width direction. This makes it possible to increase the air permeability of the front side of the diaper, which tends to collect more urine.

The second front adhesive region and / or the second posterior adhesive region preferably has higher rigidity and softness than the second intermediate adhesive region. As a result, the crotch portion of the exterior member is formed softly, and the wearing feeling of the disposable diaper can be improved.

The first adhesive region is continuously provided in the width direction across a plurality of second front adhesive regions provided intermittently in the width direction, and / or the first adhesive region is the width. It is preferable that the second rear adhesive region is provided intermittently in the direction and is continuously provided in the width direction. In this way, the first adhesive region is provided continuously in the width direction and is provided over the plurality of second front adhesive regions and / or the second posterior adhesive regions intermittently provided in the width direction. As a result, the absorbent body is less likely to shift with respect to the exterior member, and when the diaper is worn, the absorbent body can be easily set in a predetermined position at the wearer's crotch.

The first adhesive region is provided intermittently in the width direction, a first non-adhesive region is formed between adjacent first adhesive regions in which the absorbent body is not adhered to the exterior member, and a second front non-adhesive region and / or It is also preferable that the second rear non-adhesive region is provided so as to overlap the first non-adhesive region. In this case, the breathability of the disposable diaper can be further improved.

In the disposable diaper of the present invention, the absorbent body is adhered to the skin surface side of the exterior member in the first adhesive region, and the inner sheet and the outer sheet of the exterior member are bonded to the second front adhesive region and the second rear adhesive region. They are bonded to each other at the second intermediate bonding region between them. At this time, the second front adhesive region and / or the second posterior adhesive region is intermittently provided in the width direction, so that the inner sheet and the outer sheet of the exterior member are adhered to the portion where the exterior member overlaps the absorbent main body. Non-adhesive areas that are not formed are formed. Therefore, the air permeability of the exterior member is enhanced, and sweat and stuffiness generated by the wearer are easily discharged to the outside of the diaper. On the other hand, the second intermediate adhesive region is provided so as to overlap the first adhesive region, and the second front adhesive region and / or the second rear adhesive region overlaps one side edge and the other side edge in the width direction of the first adhesive region. Therefore, the absorbent main body can be easily positioned appropriately with respect to the exterior member via the first adhesive region and the second adhesive region, and the wearing feeling of the disposable diaper can be improved.

Represents a perspective view of a disposable diaper. A plan view is shown from the skin surface side of the state in which the front body portion and the rear body portion of the disposable diaper shown in FIG. 1 are unbonded and unfolded. The III-III cross-sectional view of the disposable diaper shown in FIG. 2 is shown. A plan view of the exterior member of the disposable diaper as viewed from the skin surface side is shown, and an example of forming a first adhesive region in which the absorbent main body is adhered to the exterior member is shown. A plan view of the exterior member of the disposable diaper as viewed from the skin surface side is shown, and an example of forming a second adhesive region in which the inner sheet and the outer sheet of the exterior member are adhered to each other is shown. A partial plan view of the exterior member shown in FIG. 5 on the skin surface side is shown. A plan view of the exterior member of the disposable diaper as viewed from the skin surface side is shown, and an example of forming a first adhesive region in which the absorbent main body is adhered to the exterior member is shown.

The disposable diaper of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments shown in the drawings. 1 to 3 show an example of the disposable diaper of the present invention. FIG. 1 is a perspective view of a disposable diaper, and FIG. 2 is a view of the state in which the front body portion and the rear body portion of the disposable diaper shown in FIG. 3 shows a III-III cross-sectional view of the disposable diaper shown in FIG. In the drawings, the arrow x represents the width direction, the arrow y represents the front-back direction, and the direction perpendicular to the surface formed by the arrows x and y represents the thickness direction z.

The disposable diaper 1 has an exterior member 2 composed of a front body portion P, a rear side body portion Q, and a crotch portion R located between them. The exterior member 2 is formed in a pants shape having a waist opening 3 and a pair of leg openings 4 by joining the front body P and the rear body Q. The waist opening 3 is an opening for passing the wearer's torso, and the leg opening 4 is an opening for passing the wearer's legs.

In the exterior member 2, the front torso P corresponds to the portion that is applied to the ventral side of the wearer when wearing the diaper, and the posterior torso Q is the portion that is applied to the back side of the wearer when wearing the diaper. Corresponds to. The front body portion P and the rear side body portion Q are joined to each other on both sides in the width direction x in a state of being formed in a pants shape in the front-rear direction y of the exterior member 2. The crotch portion R is located between the anterior torso P and the posterior torso Q, and corresponds to a portion to be applied to the wearer's crotch. The crotch portion R is a portion located in the middle of the exterior member 2 divided into three in the front-rear direction y, and is not joined to each other on both sides in the width direction x in a state of being formed in a pants shape. The exterior member 2 is formed in a pants shape by joining the front body portion P and the rear side body portion Q at the side joint portions 11 on both sides in the width direction x.

In the disposable diaper 1, the front-back direction y means the direction from the front side body P to the rear side body Q, and corresponds to the front-back direction of the wearer's crotch when wearing the diaper. The width direction x corresponds to the left-right direction of the wearer when wearing the diaper. The skin side of a disposable diaper means the side facing the wearer's skin when the diaper is worn. The outer surface side of a disposable diaper means the side facing the opposite side of the wearer when the diaper is worn.

An absorbent main body 7 is provided on the crotch portion R of the exterior member 2. The absorbent body 7 has a top sheet 8 and a back sheet 9 and an absorber 10 arranged between them (see FIG. 3). The top sheet 8 is a sheet located on the wearer side when the diaper is worn, and is arranged on the skin surface side of the absorber 10. The top sheet 8 is preferably liquid permeable. The back seat 9 is a seat located on the side opposite to the wearer when wearing the diaper, and is arranged on the outer surface side of the absorber 10. The backsheet 9 is preferably liquid impermeable. The urine or the like excreted from the wearer passes through the top sheet 8 and is housed by the absorber 10, and the back sheet 9 prevents the excrement from leaking to the outside.

Examples of the liquid-permeable top sheet include non-woven fabrics formed from hydrophilic fibers such as cellulose, rayon, and cotton, and polyolefins (for example, polypropylene and polyethylene), polyesters (for example, PET), and polyamides (for example, nylon). A non-woven fabric formed of the hydrophobic fibers such as the above, wherein the surface of the hydrophobic fibers is hydrophilized by a surfactant or the like can be used. Further, as the top sheet, a woven fabric, a knitted fabric, a perforated plastic film or the like may be used.

As the liquid-impermeable back sheet, a non-woven fabric formed of hydrophobic fibers such as polyolefin (for example, polypropylene, polyethylene), polyester (for example, PET), polyamide (for example, nylon), a plastic film, or the like is used. Can be done. The back sheet may be composed of a laminate of two or more sheets, and for example, a laminate of a non-woven fabric and a plastic film may be used. In this case, the sheets constituting the laminated body may have the same size or different sizes. The backsheet may be liquid impermeable and moisture permeable.

The absorber is not particularly limited as long as it contains an absorbent material capable of absorbing excrement such as urine. As the absorber, for example, a molded body obtained by molding an absorbent material into a predetermined shape can be used. The absorber may be covered with a covering sheet such as a paper sheet (for example, tissue paper or thin paper) or a liquid permeable non-woven fabric. Examples of the absorbent material include hydrophilic fibers such as pulp fibers and water-absorbent resins such as polyacrylic acid-based, polyaspartic acid-based, cellulosic-based, and starch / acrylonitrile-based. Further, the water-absorbent material may include polyolefin fibers such as polyethylene and polypropylene, polyester fibers such as PET, and heat-sealing fibers such as polyamide fibers. These heat-sealing fibers may be hydrophilized with a surfactant or the like in order to enhance the affinity with urine or the like. The absorbent material preferably contains at least a water-absorbent resin from the viewpoint of increasing the absorption capacity.

The absorbent body may have an absorbent sheet configured to have a water-absorbent resin between the non-woven fabric sheets and not to have pulp fibers. Since the absorbent sheet configured in this way has a water-absorbent resin between the non-woven fabric sheets, a high absorption capacity can be realized, and since there is no pulp fiber between the non-woven fabric sheets, it can be formed thin without being bulky.

The absorber may be one in which water-absorbent fibers are used as the absorbent material. In this case as well, the absorber can be formed to be thin. Examples of the water-absorbent fiber include fibers containing a protonated or salt-formed carboxyl group. For example, a water-absorbent fiber can be obtained by hydrolyzing an acrylic fiber to convert a nitrile group contained in the acrylic fiber into a carboxyl group. At this time, it is preferable that the carboxyl group contained in the water-absorbent fiber forms an alkali metal salt or an ammonia salt. Further, the water-absorbent fiber can be produced by immersing the hydrophilic fiber in acrylic acid and precipitating acrylic acid on the fiber surface.

The shape (planar shape) of the absorber 10 is not particularly limited. Examples of the shape of the absorber 10 include a substantially rectangular shape, an hourglass shape, a gourd shape, a battledore shape, and the like. In the drawing, the absorber 10 is formed in a substantially rectangular shape.

It is preferable that the absorbent main body 7 is provided with rising flaps 12 on both sides in the width direction x on the skin surface side (see FIGS. 2 and 3). By providing the rising flap 12, it is possible to prevent lateral leakage of excrement such as urine. It is preferable that the standing elastic member 13 is provided at the upper end portion (the end portion on the wearer side) in the state where the rising flap 12 is raised. The contraction force of the elastic member 13 for standing up makes it easier for the rising flap 12 to stand up.

The exterior member 2 has an inner sheet 5 arranged on the skin surface side and an outer sheet 6 arranged on the outer surface side. An absorbent main body 7 is provided on the skin surface side of the inner sheet 5. The outer sheet 6 is provided so that its outer surface side faces the outside of the diaper. The inner seat 5 and the outer seat 6 are configured to have a front body portion P, a rear side body portion Q, and a crotch portion R, respectively. The inner sheet 5 and the outer sheet 6 may be liquid-permeable or liquid-impermeable, and a sheet material that can be used for the top sheet 8 and the back sheet 9 can be used. The inner sheet 5 and the outer sheet 6 are preferably breathable, which can improve the wearing feeling of the exterior member 2.

When a non-woven fabric is used as the sheet material for the top sheet, back sheet, outer sheet, inner sheet and the like described above, it is preferable to use a spunbonded non-woven fabric, an air-through non-woven fabric, a point-bonded non-woven fabric, a melt-blown non-woven fabric, an SMS non-woven fabric and the like as the non-woven fabric. This makes it easy to obtain a thin and durable sheet.

The exterior member 2 is provided with a leg elastic member 22 between the inner sheet 5 and the outer sheet 6 along the edge of the leg opening 4. The leg elastic member 22 crosses the crotch portion R and crosses the front leg elastic member 22F provided along the front edge of the leg opening 4 and the crotch portion R, and is located on the posterior side of the leg opening 4. It is composed of a rear leg elastic member 22B provided along the edge. The front leg elastic member 22F and the rear leg elastic member 22B provide an elastic member over almost the entire circumference of the edge of the leg opening 4, and leg gathers are formed along the wearer's leg circumference to form a crotch portion. Leakage of urine, etc. from the body is prevented. In the drawing, the front leg elastic member 22F and the posterior leg elastic member 22B are provided so as to be separated from each other, but the front leg elastic member 22F and the posterior leg elastic member 22B are in contact with each other or intersect with each other. You may.

It is preferable that the front body portion P and the rear side body portion Q of the exterior member 2 are provided with a plurality of body elastic members 20 extending in the width direction x between the inner sheet 5 and the outer sheet 6. The body elastic member 20 is provided between the waist opening 3 and the leg opening 4. The torso elastic member 20 enhances the fit around the torso of the wearer. Of the body elastic members 20, elastic members provided at narrow intervals in the front-rear direction y along the edge of the waist opening 3 may be provided as the waist elastic members 21, thereby along the waist circumference of the wearer. Waist gathers are formed to prevent leakage of excrement such as urine from the back side and abdomen side. In FIGS. 1 and 2, the lumbar elastic member 21 is provided at a narrower interval in the front-rear direction y than the body elastic member 20.

The exterior member 2 may be folded back along the edge of the waist opening 3. For example, the outer sheet 6 may be folded back toward the inner sheet 5 at the edge of the waist opening 3 of the exterior member 2 (not shown). In this case, the lumbar elastic member 21 may be sandwiched between the folded outer sheets 6 and adhered to the outer sheet 6.

As each elastic member provided in the disposable diaper 1, elastic elastic materials used for ordinary disposable diapers such as polyurethane yarn, polyurethane film, and natural rubber can be used. Each elastic member is preferably fixed to the diaper in a stretched state, and is preferably fixed with an adhesive such as a hot melt adhesive. For example, a polyurethane yarn having a fineness of 40 to 1,240 dtex is stretched to a magnification of 1.1 to 5.0 times, arranged, and fixed. As the adhesive, it is preferable to use a rubber-based hot melt adhesive. The magnification is 1.0 times in the non-stretched state.

It is preferable that the absorbent main body 7 is provided at least on the crotch portion R on the skin surface side of the exterior member 2, and further extends to the front side body portion P and / or the rear side body portion Q. The absorbent body 7 may be formed in a substantially hourglass shape or a substantially rectangular shape, for example.

The absorbent main body 7 is adhered to the skin surface side of the exterior member 2 in the first adhesive region. The first adhesive region may be provided on the entire surface of the absorbent main body 7 on the outer surface side, or may be provided only in a part thereof. FIG. 4 shows a plan view of the exterior member 2 as viewed from the skin surface side, the outer edge of the absorbent body 7 installed on the exterior member 2 is shown by a chain line, and the exterior member 2 has the absorbent body 2. The first bonding region 14 to which the 7 is bonded is indicated by cross-hatching. FIG. 4 shows an example in which the first adhesive region 14 is provided on substantially the entire surface of the absorbent main body 7 on the outer surface side.

As will be described later, the first adhesive region 14 is a second adhesive region 16 to which the inner sheet 5 and the outer sheet 6 are adhered (specifically, the second front adhesive region 16F, the second intermediate adhesive region 16M, and the second adhesive region 16). It is provided so as to overlap the rear adhesive region 16B). The first adhesive region 14 may be provided continuously or intermittently in the front-rear direction y, but a portion overlapping the second front adhesive region 16F to a portion overlapping the second posterior adhesive region 16B. It is preferable that the coating is continuously provided. The first adhesive region 14 is preferably provided in a wide range in the front-rear direction y of the absorbent main body 7 from the viewpoint of ensuring that the absorbent main body 7 is stably fixed to the exterior member 2. For example, the length of the first adhesive region 14 in the front-rear direction y (if there are a plurality of them, the total length thereof) is preferably 70% or more, preferably 80% or more of the length of the absorbent body 7 in the front-rear direction y. Is more preferable, and 90% or more is further preferable.

The first adhesive region 14 may be provided continuously or intermittently in the width direction x. When the first adhesive region 14 is provided intermittently in the width direction x, a first non-adhesive region 15 in which the absorbent main body 7 is not adhered to the exterior member 2 is formed between the adjacent first adhesive regions 14. .. In this case, the first adhesive region 14 is preferably provided side by side in the width direction x in an amount of 2 or more and 5 or less, more preferably 4 or less, and further preferably 3 or less.

When the first adhesive region 14 is provided intermittently with respect to the width direction x, the length of the first adhesive region 14 in the width direction x (the total length of the plurality) is the length of the absorbent body 7 in the width direction x. 20% or more is preferable, 30% or more is more preferable, 90% or less is preferable, 80% or less is more preferable, and 70% or less is further preferable. When the first adhesive region 14 is continuously provided with respect to the width direction x, the length of the first adhesive region 14 in the width direction x is preferably 60% or more of the length of the absorbent body 7 in the width direction x. , 70% or more is more preferable, and 80% or more is further preferable.

When the first adhesive region 14 is continuously provided in the width direction x and the front-rear direction y, it is preferable that the first adhesive region 14 is provided in a substantially rectangular shape. When the first adhesive region 14 is provided intermittently with respect to the width direction x and / or the front-rear direction y, the substantially rectangular adhesive region is arranged side by side in the width direction x and / or the front-rear direction y. , It is preferable that the first adhesive region 14 is formed.

In the exterior member 2, the inner sheet 5 and the outer sheet 6 are adhered to each other in the second adhesive region. FIG. 5 shows a plan view of the exterior member 2 as viewed from the skin surface side, the outer edge of the absorbent main body 7 installed on the exterior member 2 is shown by a alternate long and short dash line, and the outer edge of the first adhesive region 14 is shown. Is indicated by a chain double-dashed line, and the second adhesive region 16 to which the inner sheet 5 and the outer sheet 6 of the exterior member 2 are bonded is indicated by cross-hatching.

The second adhesive region 16 is more than the second intermediate adhesive region 16M provided in the crotch portion, the second front adhesive region 16F provided on the front side of the second intermediate adhesive region 16M, and the second intermediate adhesive region 16M. It has a second rear adhesive region 16B provided on the rear side. The second front adhesive region 16F, the second intermediate adhesive region 16M, and the second posterior adhesive region 16B are defined by dividing the exterior member 2 in the front-rear direction y, and are provided so as to extend in the width direction x, respectively.

The second intermediate adhesive region 16M is provided so that at least a part thereof overlaps with the first adhesive region 14 and overlaps with the absorbent main body 7, from one side edge to the other side edge of the width direction x of the absorbent main body 7. It is provided continuously. In the second intermediate bonding region 16M, the front leg elastic member 22F and the posterior leg elastic member 22B are provided across the crotch portion R. Since the front leg elastic member 22F and the posterior leg elastic member 22B cross the crotch portion R in the second intermediate bonding region 16M, the front leg elastic member 22F and the posterior leg elastic member 22B are absorbent bodies 7. It is firmly adhered and fixed to the inner sheet 5 and / or the outer sheet 6 at the portion overlapping with the inner sheet 5. For example, as will be described later, when the front leg elastic member 22F and the posterior leg elastic member 22B are provided so as to intermittently cross the crotch portion R, the front leg elastic member 22F and the posterior leg elasticity The appearance of the diaper can be improved by not releasing the fragments of the member 22B.

The second front adhesive region 16F is provided on the front side of the second intermediate adhesive region 16M, and at least a part thereof is provided so as to overlap the first adhesive region 14. The second rear adhesive region 16B is provided on the posterior side of the second intermediate adhesive region 16M, and at least a part thereof is provided so as to overlap the first adhesive region 14. Unlike the second intermediate adhesive region 16M, the second front adhesive region 16F and the second posterior adhesive region 16B are portions that overlap with the absorbent main body 7 from one side edge of the width direction x of the absorbent main body 7 to the other side. It is provided intermittently over the edge. As a result, the inner sheet 5 and the outer sheet 6 are not adhered to the intermittent portion in the width direction x of the second front adhesive region 16F, which is a portion overlapping the absorbent main body 7 on the front side of the second intermediate adhesive region 16M. The second front non-adhesive region 17F is formed. Further, the inner sheet 5 and the outer sheet 6 are adhered to a portion overlapping the absorbent main body 7 on the rear side of the second intermediate adhesive region 16M and at an intermittent portion in the width direction x of the second rear adhesive region 16B. A second rear non-adhesive region 17B that is not formed is formed.

The second front non-adhesive region 17F and the second rear non-adhesive region 17B are formed in the portion of the exterior member 2 that overlaps with the absorbent main body 7, so that the air permeability is enhanced and the sweat generated from the wearer is increased. It is easy for stuffiness and stuffiness to be discharged to the outside of the diaper. In the disposable diaper 1, the air permeability is particularly poor at the portion where the exterior member 2 and the absorbent body 7 overlap, and the inner sheet 5 and the outer sheet 6 are adhered to each other at the portion where the absorbent body 7 of the exterior member 2 overlaps. By forming the second non-adhesive region 17 that is not formed, the air permeability at the portion where the exterior member 2 and the absorbent main body 7 overlap can be enhanced. When the back sheet 9 of the absorbent main body 7 is moisture permeable, after urine or the like is absorbed by the absorbent main body 7, the moisture becomes moisture and permeates through the moisture permeable back sheet 9 to the second front side. By passing through the non-adhesive region 17F or the second rear non-adhesive region 17B, it is easily discharged to the outside of the diaper.

When the exterior member 2 is provided with the second non-adhesive region 17 in which the inner sheet 5 and the outer sheet 6 are not adhered to each other in this way, the absorbent main body 7 moves at the wearer's crotch when the diaper is worn. It becomes easy to do, and there is a concern that it becomes difficult to set it in a predetermined position. Therefore, in the disposable diaper 1, the second intermediate adhesive region 16M is continuously provided from one side edge to the other side edge of the width direction x of the absorbent body 7 at a portion overlapping with the absorbent body 7, and is provided on the second front side. The adhesive region 16F and the second rear adhesive region 16B are provided so as to overlap the one side edge and the other side edge of the width direction x of the first adhesive region 14. As a result, the absorbent main body 7 is appropriately positioned with respect to the exterior member 2 in the second intermediate adhesive region 16M, and the first adhesive region 14 is also formed in the second front adhesive region 16F and the second rear adhesive region 16B. Since one side edge and the other side edge of the width direction x overlap with the second adhesive region 16, both side portions of the absorbent body 7 in the width direction x form the first adhesive region 14 and the second adhesive region 16. The absorbent body 7 is appropriately positioned with respect to the exterior member 2 through the structure, and the absorbent main body 7 is less likely to be displaced with respect to the exterior member 2 (particularly the outer sheet 6). Therefore, the wearing feeling of the disposable diaper 1 can be improved. The one side edge and the other side edge of the width direction x of the first adhesive region 14 are on the most one side of the width direction x when the first adhesive region 14 is provided intermittently in the width direction x. It means one side edge of the width direction x of the one adhesive region 14 and the other side edge of the width direction x of the first adhesive region 14 on the farthest side of the width direction x.

In the disposable diaper 1, it is preferable that both the second front adhesive region 16F and the second posterior adhesive region 16B are provided as described above, but only the second front adhesive region 16F or the second posterior adhesive region is provided. Only 16B may be provided as described above.

The second front adhesive region 16F is preferably provided so as to extend forward from the front edge of the absorbent body 7. Further, it is preferable that the second rear-side adhesive region 16B is provided so as to extend rearward from the rear-side edge of the absorbent body 7. If the second front adhesive region 16F and the second posterior adhesive region 16B are provided in this way, the end portion of the absorbent main body 7 in the front-rear direction y is appropriately positioned with respect to the exterior member 2, and the absorbent main body 7 is provided. 7 is less likely to shift with respect to the exterior member 2 (particularly the outer sheet 6) over a wide range in the front-rear direction y.

It is preferable that a non-adhesive region in which the inner sheet 5 and the outer sheet 6 are not adhered is formed adjacent to the second front adhesive region 16F on the front side of the second front adhesive region 16F. Further, it is preferable that a non-adhesive region in which the inner sheet 5 and the outer sheet 6 are not adhered is formed adjacent to the second rear adhesive region 16B on the rear side of the second rear adhesive region 16B. The second front non-adhesive region 17F and / or the second rear non-adhesive region 17B are preferably connected to these non-adhesive regions. As a result, the moisture accumulated in the second front non-adhesive region 17F and the second rear non-adhesive region 17B is easily discharged to the outside of the diaper.

When the body elastic member 20 is provided on the front body P and the rear body Q of the exterior member 2, the second front adhesive area 16F and / or the second rear adhesive area 16B is separated from the body elastic member 20. A non-adhesive region where the inner sheet 5 and the outer sheet 6 are not adhered may be provided between the second front adhesive region 16F and / or the second posterior adhesive region 16B and the body elastic member 20. preferable. By providing the non-adhesive region in this way, the moisture accumulated in the second front non-adhesive region 17F and the second rear non-adhesive region 17B is easily discharged to the outside of the diaper.

When a plurality of body elastic members 20 are provided on the front body P and the rear body Q of the exterior member 2, the body elastic members 20 are adhered to the inner sheet 5 and the outer sheet 6, and the adjacent body elasticity is formed. It is preferable that a non-adhesive region in which the inner sheet 5 and the outer sheet 6 are not adhered is provided between the members 20 so as to extend in the width direction x. As a result, the air permeability of the exterior member 2 can be enhanced even in the region where the body elastic member 20 of the front body P and the rear body Q is installed.

The second front non-adhesive region 17F is preferably on the front side of the second intermediate adhesive region 16M and extends forward from the position overlapping with the absorbent main body 7 to the front side edge of the absorbent main body 7. Similarly, the second rear non-adhesive region 17B extends posteriorly from the second intermediate adhesive region 16M from a position overlapping the absorbent body 7 to the rear edge of the absorbent body 7. Is preferable. If the second front non-adhesive region 17F and / or the second rear non-adhesive region 17B is formed in this way, the moisture accumulated in the second front non-adhesive region 17F and the second rear non-adhesive region 17B is a diaper. It becomes easy to be discharged to the outside of.

The second intermediate adhesive region 16M is a portion that overlaps with the absorbent main body 7, and is continuously provided from one side edge of the absorbent main body 7 in the width direction x to the other side edge, and is provided in the width direction x of the absorbent main body 7. It is preferable that the one side edge and the other side edge extend outward in the width direction x to the outer edge of the exterior member 2. By providing the second intermediate adhesive region 16M in this way, the front leg elastic member 22F and the posterior leg elastic member 22B extend from the portion crossing the crotch portion R to the portion extending along the edge of the leg opening 4. , Will be adhesively fixed to the inner sheet 5 and / or the outer sheet 6.

The second front adhesive region 16F preferably extends outward in the width direction x from one side edge and the other side edge of the absorbent body 7 in the width direction x and is provided so as to overlap the front leg elastic member 22F. .. Further, the second rear adhesive region 16B extends outward in the width direction x from one side edge and the other side edge of the absorbent body 7 in the width direction x, and is provided so as to overlap the elastic member 22B of the rear leg portion. It is preferable to be By providing the second front adhesive region 16F and / or the second posterior adhesive region 16B in this way, along the edge of the leg opening 4 of the front leg elastic member 22F and / or the posterior leg elastic member 22B. The extending portion is adhered and fixed to the inner sheet 5 and / or the outer sheet 6. At this time, the second front adhesive region 16F preferably extends forward of the front leg elastic member 22F, and the second posterior adhesive region 16B is rearward of the posterior leg elastic member 22B. It is preferably extended so that more portions of the front leg elastic member 22F and the posterior leg elastic member 22B are adhered and fixed to the inner sheet 5 and / or the outer sheet 6. .. The front of the front leg elastic member 22F means the front of the front end of the front leg elastic member 22F, and the rear of the rear leg elastic member 22B means the end of the rear leg elastic member 22B. It means behind the edge. The second front adhesive region 16F and / or the second posterior adhesive region 16B is a region within 10 mm (more preferably within 5 mm) inward from the side joint portion 11 of the exterior member 2 in the width direction x. It is preferable that it extends to the area).

It is preferable that the front leg elastic member 22F and the rear leg elastic member 22B are provided intermittently across the crotch portion in the second intermediate bonding region 16M. In other parts, it is preferable that the front leg elastic member 22F and the rear leg elastic member 22B are continuously provided. If the front leg elastic member 22F and the posterior leg elastic member 22B are provided in this way, the absorbent main body 7 is less likely to be distorted by the contraction force of the front leg elastic member 22F and the posterior leg elastic member 22B, and absorbs. It is possible to improve the fit in the crotch of the wearer of the sex body 7. When the leg elastic member 22 is provided intermittently, the leg elastic member 22 may be adhesively fixed to the inner sheet 5 and / or the outer sheet 6 and then the leg elastic member 22 may be cut with a cutter or the like. By doing so, the leg elastic member 22 can be easily and intermittently provided in manufacturing, and the contraction force of the elastic member is substantially applied at the portion where the leg elastic member 22 is intermittently provided. Can be lost.

The length y of the second intermediate bonding region 16M in the front-rear direction is provided so that the front leg elastic member 22F overlaps the portion that crosses the crotch portion R and the rear leg elastic member 22B overlaps the portion that crosses the crotch portion R. If so, the length is not particularly limited. The length of the second intermediate adhesive region 16M in the front-rear direction y is preferably 15% or more, more preferably 20% or more, and more preferably 25% of the length of the absorbent body 7 in the front-rear direction y. The above is more preferable. Further, from the viewpoint of securing the length of the second front non-adhesive region 17F and the second rear non-adhesive region 17B in the front-rear direction y and enhancing the air permeability of the exterior member 2, the second intermediate adhesive region 16M in the front-rear direction y The length of the absorbent body 7 is preferably 50% or less, more preferably 45% or less, still more preferably 40% or less of the length y in the anterior-posterior direction of the absorbent body 7.

The length of the front-rear direction y at the portion of the second front-side adhesive region 16F and the second rear-side adhesive region 16B that overlaps with the absorbent body 7 is preferably 10% or more of the length of the absorbent body 7 in the front-rear direction y, respectively. , 15% or more is more preferable, 20% or more is further preferable, 50% or less is more preferable, 45% or less is more preferable, and 40% or less is further preferable.

The lengths of the second front adhesive region 16F and the second posterior adhesive region 16B in the anteroposterior direction may be the same or different from each other, but the second posterior adhesive region 16B is the second front adhesive region. It is preferable that the length in the front-rear direction y is longer than that of the region 16F.

The second front adhesive region 16F may be provided in contact with the second intermediate adhesive region 16M, or may be provided apart from each other in the front-rear direction y. The second rear bonding region 16B may also be provided in contact with the second intermediate bonding region 16M, or may be provided apart in the front-rear direction y. The second front adhesive region 16F and / or the second posterior adhesive region 16B are provided apart from the second intermediate adhesive region 16M in the front-rear direction y from the viewpoint of enhancing the air permeability of the exterior member 2. Is preferable. In this case, a non-adhesive region in which the inner sheet 5 and the outer sheet 6 are not adhered is formed in a portion where the second front adhesive region 16F or the second rear adhesive region 16B is separated from the second intermediate adhesive region 16M, and the non-adhesive region is formed. Moisture accumulated in the second front non-adhesive region 17F and the second rear non-adhesive region 17B is easily discharged to the outside of the diaper through the region. In this case, the separation distance between the second front adhesive region 16F and the second intermediate adhesion region 16M in the front-rear direction y and the separation distance between the second rear adhesion region 16B and the second intermediate adhesion region 16M in the front-rear direction y are determined. 2 mm or more is preferable, 20 mm or less is preferable, 15 mm or less is more preferable, and 10 mm or less is further preferable.

The second front adhesive region 16F and / or the second posterior adhesive region 16B is a portion that overlaps with the absorbent body 7 in the width direction x, and is from one side edge to the other side of the absorbent body 7 in the width direction x. Intermittently provided over the edges, a second anterior non-adhesive region 17F and / or a second posterior non-adhesive region 17B is formed. At this time, the number of the second front non-adhesive regions 17F formed in the portion overlapping the absorbent main body 7 is preferably 3 or less, preferably 2 or less, and further preferably only one. Similarly, the number of the second rear non-adhesive regions 17B formed in the portion overlapping the absorbent main body 7 is preferably 3 or less, preferably 2 or less, and further preferably only one.

Particularly preferred embodiments of the second front adhesive region 16F, the second front non-adhesive region 17F, the second posterior adhesive region 16B, and the second posterior non-adhesive region 17B will be described with reference to FIG. FIG. 6 shows a partial plan view of the exterior member shown in FIG. 5 on the skin surface side.

The second front adhesive region 16F and the second front non-adhesive region 17F are preferably provided as follows. The second front adhesive region 16F has a second right front adhesive region 16RF provided on one side in the width direction x and a second left front adhesive region 16LF provided on the other side in the width direction x. The right front adhesive region 16RF is provided so as to overlap one side edge of the width direction x of the first adhesive region 14, and the second left front adhesive region 16LF is provided so as to overlap the other side edge of the first adhesive region 14 in the width direction x. Therefore, it is preferable that the second front non-adhesive region 17F is formed between the second right front adhesive region 16RF and the second left front adhesive region 16LF. In this case, it is preferable that only one second front non-adhesive region 17F is formed between the second right front adhesive region 16RF and the second left front adhesive region 16LF. As a result, the area of the second front non-adhesive region 17F can be widened to improve the air permeability. The one side edge and the other side edge of the width direction x of the first adhesive region 14 are on the most one side of the width direction x when the first adhesive region 14 is provided intermittently in the width direction x. It means one side edge of the width direction x of the one adhesive region 14 and the other side edge of the width direction x of the first adhesive region 14 on the farthest side of the width direction x.

The second rear-side adhesive region 16B and the second rear-side non-adhesive region 17B are preferably provided as follows. The second rear adhesive region 16B has a second right rear adhesive region 16RB provided on one side in the width direction x and a second left rear adhesive region 16LB provided on the other side in the width direction x. , The second right rear adhesive region 16RB is provided so as to overlap one side edge of the first adhesive region 14 in the width direction x, and the second left rear adhesive region 16LB is the other side of the first adhesive region 14 in the width direction x. It is preferable that the second rear non-adhesive region 17B is formed so as to overlap the edge and between the second right rear adhesive region 16RB and the second left rear adhesive region 16LB. In this case, it is preferable that only one second rear non-adhesive region 17B is formed between the second right rear adhesive region 16RB and the second left rear adhesive region 16LB. As a result, the area of the second rear non-adhesive region 17B can be widened to improve the air permeability.

The length of the second front non-adhesive region 17F in the width direction x (the total length if there are a plurality of them) and the length of the second rear non-adhesive region 17B in the width direction x (the total length if there are a plurality of regions). Is preferably 10% or more, more preferably 15% or more, of the length x in the width direction x of the absorbent body 7 from the viewpoint of enhancing the air permeability of the exterior member 2. Further, the length of the second front non-adhesive region 17F in the width direction x and the second non-adhesive side non-adhesive from the viewpoint that the absorbent main body 7 can be easily set at an appropriate position with respect to the exterior member 2 (particularly the outer sheet 6). The length of the region 17B in the width direction x is preferably 80% or less, more preferably 70% or less of the length of the absorbent body 7 in the width direction x.

From the relationship with the first adhesive region 14, the second front non-adhesive region 17F and the second rear non-adhesive region 17B are preferably provided as follows. As shown in FIG. 6, the length from one side edge to the other side edge of the width direction x of the portion where the first bonding region 14 overlaps the second front bonding region 16F is _WA1 , and the length of the second front non-bonding region 17F. When the length of x in the width direction (the total length if there are a plurality of them) is _WA2 , the value of _WA2 / _WA1 is preferably 0.15 or more, more preferably 0.20 or more, and more preferably 0.20 or more. 0.90 or less is preferable, and 0.80 or less is more preferable. Similarly, the length from one side edge to the other side edge of the width direction x of the portion where the first adhesive region 14 overlaps the second rear adhesive region 16B is _WB1 , and the width direction of the second rear non-adhesive region 17B. When the length of x (or the total length if there are a plurality of them) is _WB2 , the value of _WB2 / _WB1 is preferably 0.15 or more, more preferably 0.20 or more, and 0. 90 or less is preferable, and 0.80 or less is more preferable. This makes it easier to set the absorbent main body 7 at an appropriate position with respect to the exterior member 2 (particularly the outer seat 6) when wearing a diaper while increasing the air permeability of the exterior member 2.

The lengths of the second front non-adhesive region 17F and the second rear non-adhesive region 17B in the width direction x may be the same or different from each other, but the width direction x of the second front non-adhesive region 17F It is preferable that the length W _A2 is longer than the length W _B2 in the width direction x of the second rear non-adhesive region 17B. This makes it possible to increase the air permeability of the front side of the diaper, which tends to collect more urine.

For the same reason, it is preferable that the second front non-adhesive region 17F is provided in a wider area than the second rear non-adhesive region 17B. The area of the second front non-adhesive region 17F corresponds to the area of the intermittent portion in the width direction x of the second front adhesive region 16F, and the area of the second rear non-adhesive region 17B is that of the second rear adhesive region 16B. It corresponds to the area of the intermittent portion in the width direction x.

As a specific embodiment of the first adhesive region 14 and the second adhesive region 16, it is preferable that each adhesive region is provided as follows. The first adhesive region 14 is preferably provided continuously in the width direction x, straddling a plurality of second front adhesive regions 16F provided intermittently in the width direction x, and is intermittent in the width direction x. It is preferable that the second rear adhesive region 16B is continuously provided in the width direction x so as to straddle the plurality of second rear adhesive regions 16B. In this way, the first adhesive region 14 is continuously provided in the width direction x and intermittently provided in the width direction x in the plurality of second front adhesive regions 16F and / or the second posterior adhesive regions 16B. By being provided so as to straddle, the absorbent main body 7 is less likely to shift with respect to the exterior member 2 (particularly the outer sheet 6), and when the diaper is worn, the absorbent main body 7 is designated by the wearer's crotch. It will be easier to set in the position.

From the viewpoint of increasing the air permeability of the disposable diaper 1, as shown in FIG. 7, the first adhesive region 14 is intermittently provided in the width direction x, and the absorbent main body 7 is provided between the adjacent first adhesive regions 14. It is also preferable that the first non-adhesive region 15 that is not adhered to the exterior member 2 is formed. In this case, it is preferable that the second front non-adhesive region 17F and / or the second rear non-adhesive region 17B is provided so as to overlap the first non-adhesive region 15. In FIG. 7, the outer edge of the absorbent main body 7 installed on the exterior member 2 is represented by a alternate long and short dash line, and the first adhesive region 14 to which the absorbent main body 7 is adhered to the exterior member 2 is shown by cross-hatching. The first adhesive region 14 is intermittently provided on the outer surface side of the absorbent main body 7 in the width direction x, and the absorbent main body 7 is not adhered to the exterior member 2 between the adjacent first adhesive regions 14. 15 is formed. When the first adhesive region 14 and the first non-adhesive region 15 are formed as shown in FIG. 7, and the second adhesive region 16 and the second non-adhesive region 17 are formed as shown in FIG. 5, the first non-adhesive region is formed. Reference numeral 15 is provided so as to overlap the second front non-adhesive region 17F and the second rear non-adhesive region 17B.

When the first non-adhesive region 15 is provided, the length x in the width direction x of the overlapping portion between the first non-adhesive region 15 and the second front non-adhesive region 17F or the second rear non-adhesive region 17B (if there are a plurality of them). The total length) is preferably 10% or more, more preferably 15% or more, more preferably 80% or less, and even more preferably 70% or less of the length x in the width direction of the absorbent body 7.

As the adhesive forming the first adhesive region 14 and the second adhesive region 16, it is convenient in manufacturing to use a hot melt adhesive. Examples of the hot melt adhesive include rubber-based adhesives such as natural rubber-based, butyl rubber-based, and polyisoprene; styrene-isoprene-styrene block copolymer (SIS), and styrene-butadiene-styrene block copolymer (SBS). ), Styrene-ethylene-butadiene-styrene block copolymer (SEBS), styrene-ethylene-propylene-styrene block copolymer (SEPS) and other styrene-based elastomers are preferably used as the base polymer. Further, the adhesiveness and fluidity may be adjusted by blending ethylene-vinyl acetate copolymer (EVA); polyester; acrylic elastomer; polyolefin-based elastomer or the like with the base polymer. It is also preferable to use an amorphous polyalphaolefin (APAO) such as an ethylene / propylene copolymer as a kind of polyolefin-based elastomer.

The adhesive may be applied to the entire surface of each adhesive region, or the adhesive may be applied in a net shape, a linear shape, or a scattered spot shape. As a method of applying the adhesive, for example, a curtain spray method, an omega coating method, a spiral coating method, a pattern coating or the like can be used.

The adhesive forming the first adhesive region 14 and the adhesive forming the second adhesive region 16 may be the same or different from each other. Further, the adhesive forming the second front adhesive region 16F, the adhesive forming the second intermediate adhesive region 16M, and the adhesive forming the second rear adhesive region 16B may be the same or different from each other. good. From the viewpoint of improving the wearing feeling of the disposable diaper 1, the exterior member 2 is preferably formed softly at the crotch portion R, and from such a viewpoint, the second front adhesive region 16F and / or the second posterior side. The adhesive region 16B preferably has higher rigidity and softness than the second intermediate adhesive region 16M. For example, the adhesive coating amount per unit area of the second intermediate bonding region 16M is based on the coating amount per unit area of the second front bonding region 16F and / or the coating amount per unit area of the second rear bonding region 16B. It is preferable that the amount is small. Alternatively, as the adhesive forming the second intermediate adhesive region 16M, an adhesive having a lower cohesive force than the adhesive forming the second front adhesive region 16F and / or the adhesive forming the second rear adhesive region 16B is used. Is preferable.

1: Disposable diaper 2: Exterior member 3: Waist opening 4: Leg opening 5: Inner sheet 6: Outer sheet 7: Absorbent body 8: Top sheet 9: Back sheet 10: Absorber 14: First adhesive area 15 : 1st non-adhesive area 16: 2nd adhesive area, 16F: 2nd front adhesive area, 16M: 2nd intermediate adhesive area, 16B: 2nd rear adhesive area 17: 2nd non-adhesive area, 17F: 2nd front side Non-adhesive region, 17B: Second rear non-adhesive region 20: Body elastic member 21: Waist elastic member 22: Leg elastic member, 22F: Front leg elastic member, 22B: Rear leg elastic member P: Front side Body Q: Rear body R: Crotch

Claims (10)

Pants shape that has a front torso, a posterior torso, and a crotch located between them, and has a waist opening and a pair of leg openings by joining the front torso and the posterior torso. With the exterior member formed in
A disposable diaper provided at least in the crotch part of an exterior member and having a top sheet, a back sheet, and an absorbent body having an absorbent body arranged between them.
The exterior member has an inner sheet and an outer sheet, and between the inner sheet and the outer sheet, the crotch is crossed, and the front leg elastic member extending along the front edge of the leg opening and the crotch are crossed. A posterior leg elastic member extending along the posterior edge of the leg opening is provided.
The absorbent body is adhered to the skin surface side of the exterior member in the first adhesive region,
The inner sheet and the outer sheet are adhered to each other in the second adhesive region, and the second adhesive region is the second intermediate adhesive region provided in the crotch portion and the second front adhesive provided in front of the second intermediate adhesive region. It has a region and a second rear bonding region provided on the rear side of the second intermediate bonding region. In the second intermediate bonding region, the front leg elastic member and the rear leg elastic member form a crotch portion. Provided across
The second intermediate adhesive region is provided at least partially overlapping the first adhesive region, and is continuously provided from one side edge to the other side edge in the width direction of the absorbent body.
A disposable diaper characterized in that a second front adhesive region is provided to meet the following requirement A and / or a second posterior adhesive region is provided to meet the following requirement B.
(Requirement A)
At least a part of the second front adhesive region is provided so as to overlap the first adhesive region, and is provided intermittently from one side edge to the other side edge in the width direction of the absorbent body, whereby the second intermediate adhesion is provided. A second front non-adhesive region is formed in a portion overlapping the absorbent body on the front side of the region so that the inner sheet and the outer sheet are not adhered.
In the second front adhesive region, the length in the front-rear direction at the portion overlapping the absorbent body is 10% or more and 50% or less of the length in the front-rear direction of the absorbent body, and overlaps with the front edge of the absorbent body. Is provided
The second front non-adhesive region is continuously formed in the anteroposterior direction over the entire anterior-posterior range in which the second anterior adhesive region is formed.
The second front adhesive region is provided so as to overlap the one side edge and the other side edge in the width direction of the first adhesive region.
(Requirement B)
At least a part of the second rear adhesive region is provided so as to overlap the first adhesive region, and is provided intermittently from one side edge to the other side edge in the width direction of the absorbent body, whereby the second intermediate is provided. A second rear non-adhesive region is formed in a portion overlapping the absorbent body on the rear side of the adhesive region so that the inner sheet and the outer sheet are not adhered.
In the second rear adhesive region, the length in the front-rear direction at the portion overlapping the absorbent body is 10% or more and 50% or less of the length in the front-rear direction of the absorbent body, and the rear edge of the absorbent body. It is provided so that it overlaps with
The second rear non-adhesive region is continuously formed in the anteroposterior direction over the entire anterior-posterior range in which the second posterior adhesive region is formed.
The second rear adhesive region is provided so as to overlap the one side edge and the other side edge in the width direction of the first adhesive region. The disposable diaper according to claim 1, wherein the front leg elastic member and the rear leg elastic member are provided intermittently across the crotch portion in the second intermediate adhesive region. The second intermediate bonding region according to claim 1 or 2, wherein the second intermediate adhesive region extends from one side edge in the width direction of the absorbent body and the outer side in the width direction from the other side edge to the outer edge of the exterior member. Disposable diapers. The second front adhesive region extends anterior to the anterior edge of the absorbent body and / or
The disposable diaper according to any one of claims 1 to 3, wherein the second rear adhesive region extends behind the rear edge of the absorbent body. The second front adhesive region extends outward in the width direction from one side edge in the width direction and the other side edge of the absorbent body, is provided so as to overlap the front leg elastic member, and is provided from the front leg elastic member. Also extends forward and / or
The second rear adhesive region extends outward in the width direction from one side edge in the width direction and the other side edge of the absorbent body, is provided so as to overlap the elastic member of the rear side leg, and the rear side leg portion. The disposable diaper according to any one of claims 1 to 4, which extends behind the elastic member. On the front torso and the posterior torso, a torso elastic member extending in the width direction is provided between the inner and outer seats.
The second front adhesive region and / or the second rear adhesive region is provided apart from the body elastic member, and between the second front adhesive region and / or the second rear adhesive region and the body elastic member, The disposable diaper according to any one of claims 1 to 5, wherein a non-adhesive region is formed in which the inner sheet and the outer sheet are not adhered. When the length from one side edge to the other side edge in the width direction of the portion where the first adhesive region overlaps with the second front adhesive region is _{WA1, and the length in the width direction of the second front non-adhesive region is WA2 .} , _WA2 / _WA1 values are 0.15 or more and 0.90 or less, and / or
The length from one side edge to the other side edge in the width direction of the portion where the first adhesive region overlaps with the second rear adhesive region is _WB1 , and the length in the width direction of the second rear non-adhesive region is _WB2 . The disposable diaper according to any one of claims 1 to 6, wherein the value of W _B2 / W _B1 is 0.15 or more and 0.90 or less. The disposable diaper according to any one of claims 1 to 7, wherein the length of the second front non-adhesive region in the width direction is longer than the length of the second rear non-adhesive region in the width direction. The first adhesive region is continuously provided in the width direction and / or straddles a plurality of second front adhesive regions provided intermittently in the width direction.
The first adhesive region spans a plurality of second rear adhesive regions provided intermittently in the width direction, and is continuously provided in the width direction according to any one of claims 1 to 8 . The listed disposable diapers. The first adhesive region is provided intermittently in the width direction, and a first non-adhesive region is formed between the adjacent first adhesive regions so that the absorbent body is not adhered to the exterior member.
The disposable diaper according to any one of claims 1 to 8 , wherein the second front non-adhesive region and / or the second rear non-adhesive region is provided so as to overlap the first non-adhesive region.

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